3,6-Anhydro-L-galactose-dimethylacetal | 81847-80-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧唑烯
• 英文名称: 3,6-Anhydro-L-galactose-dimethylacetal
• 英文别名: 3,6-Anhydro-L-galaktose-dimethylacetal；3,6-Anhydro-L-galactose dimethyl acetal；(2R,3R,4S)-2-[(1S)-1-hydroxy-2,2-dimethoxyethyl]oxolane-3,4-diol
• CAS: 81847-80-5
• 化学式: C₈H₁₆O₆
• 分子量: 208.211
• InChiKey: NEVJSDCAIXBUDB-BNHYGAARSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.5
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  88.4
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3,6-Anhydro-L-galactose-dimethylacetal 在 硫酸 作用下， 生成 N-(3-环己基丙酰)-L-酪氨酸
  参考文献：
  名称：

  Gloiopeltis Furcata 粘液的成分

  摘要：

  1. Gloiopeltis furcata 的粘液已通过完全甲醇分解法进行了研究。2. 3,6-脱水-L-半乳糖二甲基乙缩醛和甲基D-半乳糖苷已从甲醇解物中分离出来。此外，L-半乳糖也以结晶 DL-半乳糖二乙基硫醇的形式被分离出来。3. 分离物的产率表明所使用的粘液含有摩尔比约为 8:12:1 的 3, 6-脱水-L-半乳糖、D-半乳糖和 L-半乳糖。

  DOI：

  10.1246/bcsj.29.985
• 作为产物：
  描述：

  agarobiose 在 盐酸 、 甲醇 作用下， 生成 3,6-Anhydro-L-galactose-dimethylacetal
  参考文献：
  名称：

  Studies on the Chemical Constitution of Agar-agar. XVII Isolation of Crystalline Agarobiose Dimethylacetal by Partial Methanolysis of Agar-agar

  摘要：

  DOI：

  10.1246/bcsj.27.109

文献信息

• Studies on the Chemical Constitution of Agar-agar. XVIII. Isolation of a New Crystalline Disaccharide by Enzymatic Hydrolysis of Agar-agar
  作者：Choji Araki、Kiyoshi Arai

  DOI：10.1246/bcsj.29.339

  日期：1956.3

  1. A new crystalline disaccharide has been isolated from enzymatic hydrolysates of agar. Its hexaacetate and phenylosazone have been prepared in crystalline states. 2. The name neoagarobiose has been assigned to the disaccharide isolated. 3. The structure of neoagarobiose has been shown beyond doubt to be 3-O-3′, 6′-anhydro-L-galactopyranosyl-D-galactose. It has been suggested that the glycoside linkage

  1. 从琼脂的酶解液中分离出一种新的结晶二糖。其六乙酸酯和苯唑酮已制备成结晶状态。2. 新琼脂二糖的名称已分配给分离的二糖。3. 新琼脂二糖的结构已被证实为 3-O-3', 6'-脱水-L-吡喃半乳糖基-D-半乳糖。已经表明糖苷键是α'-构型。
• Studies on the Chemical Constitution of Agar-agar. XX. Isolation of a Tetrasaccharide by Enzymatic Hydrolysis of Agar-agar
  作者：Choji Araki、Kiyoshi Arai

  DOI：10.1246/bcsj.30.287

  日期：1957.3

  1. A tetrasaccharide, forming a crystalline tetrahydrate, has been isolated from the products of enzymatic hydrolysis of agar. Its fully acetylated and methylated derivatives have also been obtained as crystals.2. Identification of both monosaccharide and disacharide constituents has led to the assignment of the structure, O-3,6-anhydro-α-l-galactopyranosly-(1→3)-O-β-d-galactopyranosyl-(1→4)-O-3,6-anhydro-α-l-galactopyranosyl-(1→3)-d-garactose, to the tetrasaccharide isolated. The structure has been supported also by methylation data.3. The tetrasaccharide has been termed neoagarotetraose, based on the general nomenclature suggested for oligosaccharides derived from agarose and a similar polysaccharide.4. A probable course has been assumed for the enzymatic degradation of agarose.

  1.从琼脂酶水解产物中分离出四糖，形成结晶四水合物。其全乙酰化和甲基化衍生物也已得到晶体。 2．单糖和二糖成分的鉴定导致了结构的分配，O-3,6-脱水-α-l-吡喃半乳糖基-(1→3)-O-β-d-吡喃半乳糖基-(1→4)- O-3,6-脱水-α-l-吡喃半乳糖基-(1→3)-d-半乳糖，至分离的四糖。该结构也得到了甲基化数据的支持。3．根据对琼脂糖衍生的寡糖和类似多糖提出的通用命名法，四糖被称为新琼脂四糖。4．琼脂糖酶促降解的可能过程已被假定。
• Araki, Nippon Kagaku Kaishi/Journal of the Chemical Society of Japan, 1944, vol. 65, p. 725,727
  作者：Araki

  DOI：——

  日期：——
• Studies on the Chemical Constitution of Agar-agar. Exhaustive Mercaptolyses of Agar-agar
  作者：Choji Araki、Susumu Hirase

  DOI：10.1246/bcsj.26.463

  日期：1953.8
• Studies on the Chemical Constitution of Agar-agar. XVII Isolation of Crystalline Agarobiose Dimethylacetal by Partial Methanolysis of Agar-agar
  作者：Choji Araki、Susumu Hirase

  DOI：10.1246/bcsj.27.109

  日期：1954.2